Christopher Posted August 29, 2012 Posted August 29, 2012 It’s happened to all of us at some point. You pull the dead battery out of your favorite mod, you place it into your charger and the light turns green. Wait, green light? WTH it’s dead! Why is the green light on? Stupid Chinese crap charger, right? No, it’s probably not the charger. It’s the protection circuit in the battery. Some of these batteries are pricey and replacing them can take a toll on your wallet. Here’s what probably happened… Most good batteries come with built in protection. When the battery is drained too low the safety circuit kicks in to protect the battery and more so you, from any damage. Is there a way to fix the battery? Yes, sometimes. The the following trick doesn’t always work but has saved me countless headaches.1. Grab another battery of equal size and voltage (if you don’t have another, grab a 9 volt battery)2. Connect the positive and negative ends of both batteries (The second battery must be fully charged in order to repair the defective battery)3. Hold for about 3-4 seconds.NOTE: Positive to Positive, Negative to Negative! Essentially you’re “jumping” the battery. It should cause the protection circuit to “reset”. Place your defective battery back on the charger and wallah, red light I hope this helps some of you save a couple bucks and drive a little extra life out of those mod batteries. -Chris FoxOfTheEast and DavidBowser 2
FoxOfTheEast Posted October 16, 2017 Posted October 16, 2017 I'm on vacation with no easy access to other batteries but the ones in my mod. This worked and was the first link I clicked on, a post from 5 years ago so I created an account to say thanks!! Jeffb and Walt 2
DrAwkwArD Posted April 16, 2021 Posted April 16, 2021 Worked like a charm! This is the only simple fix I could find. Had to use a couple 9Vs, worked fast! The charger I have is supposed to reactivate batteries like this but this one wasn’t even being detected at all. Now I have an extra set of good batteries! Thanks!
tattedtrucker Posted August 25, 2021 Posted August 25, 2021 (edited) Just did this to a brand new, out of the box, iJOY 20700 that I thought I was boned on...worked like a charm! I did it the absolute most ghetto way I could as well.....two bread twist ties and a couple pieces of Scotch tape. Edited August 25, 2021 by tattedtrucker
Ethan Jones Posted June 9, 2022 Posted June 9, 2022 This process actually worked. Thanks for this thread…..gonna share it with my smoking buds, they have a lot of dreaded batteries with them
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